In the year 1627, pirates from Algiers raided Iceland. They first attacked the Westman Islands, then arrived at Grindavík on June 20. The Algerian pirates were known as "Turks" in Iceland, as Algeria was then a part of the huge Ottoman Empire. They seized Icelanders and Danes and sold them into slavery in north Africa. No-one was killed in the raid on Grindavík, but two were injured. Some of the enslaved prisoners were later ransomed and eventually returned to Iceland; one of them, Guðríður Símonardóttir, married the Rev. Hallgrímur Pétursson, author of the Hymns of the Passion and Halldór the grandfather of Jón Þorkelsson Thorkillius the principal.